diff --git a/exercises/quiz3.rs b/exercises/quiz3.rs
index 15dc4699..6c135f6b 100644
--- a/exercises/quiz3.rs
+++ b/exercises/quiz3.rs
@@ -14,18 +14,19 @@
 
 // Execute `rustlings hint quiz3` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
-pub struct ReportCard {
-    pub grade: f32,
+use std::fmt::Display;
+pub struct ReportCard<T: Display> {
+    pub grade: T,
     pub student_name: String,
     pub student_age: u8,
 }
 
-impl ReportCard {
+impl<T: Display> ReportCard<T> {
     pub fn print(&self) -> String {
-        format!("{} ({}) - achieved a grade of {}",
-            &self.student_name, &self.student_age, &self.grade)
+        format!(
+            "{} ({}) - achieved a grade of {}",
+            &self.student_name, &self.student_age, &self.grade
+        )
     }
 }
 
@@ -56,7 +57,7 @@ mod tests {
         };
         assert_eq!(
             report_card.print(),
-            "Gary Plotter (11) - achieved a grade of A+"
+            "Gary Plotter (11) - achieved a grade of 2.1"
         );
     }
 }